#define _CRT_SECURE_NO_WARNINGS 1
#include"test.h"
void swap(int& a, int& b)
{
 int tmp = a;
	a = b;
	b = tmp;
}
int main()
{
	int a = 0;
	int b = 11111;
	int& c = a;

	cin >> c;
	cout << "a=" << a << endl;
	cout << "b=" << b << endl;
	cout << "c=" << c << endl<<endl;
	swap(b, a);
	cout << "a=" << a << endl;
	cout << "b=" << b << endl;
	cout << "c=" << c << endl;
}